Question

magnetic field at a distance of 2cm from a long straight current carrying wire is 2T the current in the wire is??​

Answer 1

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Answer and Explanation:

Magnetic field due to an infinite straight condun by

B=μ0I

2πr

Where

B is magnetic field

i is current through the conductor

r is the distance from the conductor

That gives

B1 -r2

B2 -r1

B2=r1B1

r2

We have

B1=4μT

r1=2cm=0.02m

r2=4cm

=

0.04

m

Plugging in the values

B2=0.02

0.04

6

That gives

B2=2μT

Thus magnetic field at a distance of 1 cm from the wire is

2μT

ï hope it help u ☺.

Answer 2

Explanation:

Answer and Explanation:

Magnetic field due to an infinite straight condun by

B=μ0I

2πr

Where

B is magnetic field

i is current through the conductor

r is the distance from the conductor

That gives

B1 -r2

B2 -r1

B2=r1B1

r2

We have

B1=4μT

r1=2cm=0.02m

r2=4cm

=

0.04

m

Plugging in the values

B2=0.02

0.04

6

That gives

B2=2μT

Thus magnetic field at a distance of 1 cm from the wire is

2μT

ï hope it help u ☺